Skip to content
WanderNerd
Check a flight

Airport Reliability

DEN · Denver

Denver International Airport

76%
Departures within 15 minutes
15 min
Average departure delay
79%
Arrivals within 15 minutes
0.8%
Departures cancelled

Based on 318,679 departures and 318,657 arrivals. Data through May 2026.

What the data says

Morning-you made the right choice.

Departures from DEN departing between 3–6 AM arrived on time 94% of the time, versus 66% between 6–9 PM.

Wednesday has been the better bet.

A small edge: 80% on time on Wednesdays against 74% on Fridays.

When DEN gets messy

On-time by departure window
  • 12–3 AM83%(1093 flights)
  • 3–6 AM94%(3688 flights)
  • 6–9 AM89%(43054 flights)
  • 9 AM–12 PM82%(74940 flights)
  • 12–3 PM79%(52821 flights)
  • 3–6 PM70%(62802 flights)
  • 6–9 PM66%(57697 flights)
  • 9 PM–12 AM70%(19029 flights)
On-time by weekday
  • Mon77%(47098 flights)
  • Tue79%(42238 flights)
  • Wed80%(43047 flights)
  • Thu75%(46608 flights)
  • Fri74%(47042 flights)
  • Sat79%(41229 flights)
  • Sun75%(47862 flights)
On-time trend by month
77%
May

Jun 65% → May 77% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202565%27840
July 202564%28827
August 202571%27781
September 202580%26467
October 202582%27669
November 202585%24875
December 202575%25775
January 202683%24008
February 202683%22797
March 202678%26611
April 202683%25218
May 202677%27256

Airlines departing DEN

Busiest routes from DEN

Based on 318,679 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.